Responsibilities of Highway Office 12 (Suphan Buri):
Highway Office 12 has the following authority and responsibilities within its area of ​​responsibility

1. Planning, surveying, designing, inspecting, and conducting engineering analysis related to road maintenance, highway safety, and small-scale construction projects for highway districts.

2. Planning and implementing medium-scale construction projects and maintaining the assigned highway network.

3. Handling land expropriation and legal matters.

4. Operating vehicle weigh stations.

5. Planning, managing, and maintaining machinery and vehicles.

6. Planning, supervising, and monitoring the performance of highway districts to ensure compliance with policies, plans, and goals.

7. Handling permits as assigned under highway laws.

8. Providing consultation, advice, and technical support to highway districts and other agencies.

9. Collaborating with other agencies. Or to support the operations of other related or assigned agencies.

By overseeing, advising, and supporting the operations of 6 highway districts, namely:

1. Suphan Buri Highway District 1

2. Kanchanaburi Highway District

3. Suphan Buri Highway District 2 (Uthong)

4. Chainat Highway District

5. Uthai Thani Highway District

7. Ang Thong Highway District